42826123 has 2 divisors, whose sum is σ = 42826124. Its totient is φ = 42826122.

The previous prime is 42826117. The next prime is 42826141. The reversal of 42826123 is 32162824.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42826123 - 2⁹ = 42825611 is a prime.

It is a super-2 number, since 2×42826123² = 3668153622422258, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 42826091 and 42826100.

It is not a weakly prime, because it can be changed into another prime (42826163) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21413061 + 21413062.

It is an arithmetic number, because the mean of its divisors is an integer number (21413062).

Almost surely, 2^42826123 is an apocalyptic number.

42826123 is a deficient number, since it is larger than the sum of its proper divisors (1).

42826123 is an equidigital number, since it uses as much as digits as its factorization.

42826123 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4608, while the sum is 28.

The square root of 42826123 is about 6544.1670974999. The cubic root of 42826123 is about 349.8669507895.

Adding to 42826123 its reverse (32162824), we get a palindrome (74988947).

The spelling of 42826123 in words is "forty-two million, eight hundred twenty-six thousand, one hundred twenty-three".